Home / 21,519,728.64-32,279,316.48-7,149,404.16

Finding the Fourth Proportional to 21,519,728.64, 32,279,316.48 and 7,149,404.16

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Solution

The fourth proportional to 21,519,728.64, 32,279,316.48 and 7,149,404.16 is: 10,724,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,519,728.64 : 32,279,316.48 = 7,149,404.16 : x
  2. Step 2: Convert to fraction form
    21,519,728.64/32,279,316.48 = 7,149,404.16/x
  3. Step 3: Cross multiply
    21,519,728.64x = 32,279,316.48 × 7,149,404.16
  4. Step 4: Simplify right side
    21,519,728.64x = 230,777,879,524,068.56
  5. Step 5: Solve for x
    x = 230,777,879,524,068.56/21,519,728.64
  6. Step 6: Final answer
    x = 10,724,014.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.